Polished fossil stromatolite slab. Domal from Irregully formation IRR120 rock blocks Dimensions at widest points approximately

Dimensions at widest points approximately 90 mm x 75 mm x 45 mm thick

Weighs 75 grams

Dimensions approximately 120mm x 100mm x 9mm thick

Unusual colouration caused by natural iron oxide weathering

280 mm x 130 mm x 10

Polished fossil stromatolite slab. Domal from Irregully formation IRR120 rock blocks Dimensions at widest points approximatelyIRR120 Fossil stromatolite slab polished on one side. A domal stromatolite from the Proterozoic "Irregully Formation" in Western Australia. Yet to be formally identified but possibly Paniscollenia . Age is approx. 1. 1 billion years. Dimensions approximately 170 mm x 65 mm x 9 mm thick Weighs 236 grams